Crestron C2N-NPA8 Especificaciones descargar pdf (Pagina 32)

Network Poll Accelerator Crestron C2N-NPA8

Troubleshooting Communications

Use the following checklist if communications cannot be established with the

C2N-NPA8.

1. Verify that you are using the correct cables. As described previously,

an RS-232 connection requires a straight-through serial cable. That is,

pin 1 on one end is connected to pin 1 on the other end. Pin 2 connects

to pin 2, etc. With a TCP/IP connection, you must use a CAT5 cable

with 8-pin RJ45 connectors.

2. With a serial connection, verify that the correct COM port on the PC

has been selected. Some computers have more than one COM port;

some may be internal (e.g., for a modem). Consult the manufacturer’s

documentation for further information about the COM ports on your

PC.

3. Check the ERR LED indicator on the C2N-NPA8. If this LED is

illuminated before a program is loaded, examine the error log through

the Viewport menu Functions | 2-Series | Error Log | Show Error

Log.

4. Correct any problems indicated by the error log, i.e. connect cables,

verify Ethernet parameters, reconfigure Cresnet IDs to eliminate

duplicates, etc.

5. Clear the error log. If the ERR LED illuminates again, unplug the unit

and reapply power after a few seconds. If the LED illuminates again, or

if communication still cannot be established, contact Crestron customer

service.

Troubleshooting Non-Functioning Units

If after reviewing the troubleshooting chart on page 27, the C2N-NPA8 is still not

functioning, reinstall the operating system file by performing the following

procedure.

1. Connect a DB9 straight through RS-232 cable between the C2N-NPA8

and a PC. Refer to “Establish a Serial Connection” on page 14 for more

information.

2. Open Viewport and select Setup | Communication Settings to open

the “Port Settings” window.

3. In the window, select RS-232 (Connection Type), 57600 (Baud Rate),

N (Parity), 8 (Data Bits) and 1 (Stop Bits) and click OK.

4. Power down the C2N-NPA8.

5. While powering up the C2N-NPA8, press and hold ALT + K on the

keyboard until the following text (or similar) appears in Viewport:

System Monitor [v1.001 (0001)]

12-19-01 16:25:23 32 MB RAM, 4MB FLASH

CS>

NOTE: After this, you can increase the baud rate to 115200 (for faster

communication) by pressing F8 on the keyboard and then selecting 115200 from the

“Set Baud Rate” window.

28 • Network Poll Accelerator: C2N-NPA8 Operations Guide – DOC. 6087A

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